WMEFENS方法的数值稳定性和精度
首发时间:2006-04-04
摘要:概要介绍了WMEFENS方法及其主要创新点。对采用该方法求解点源出平面波动问题时的数值稳定性和精度进行了数值试验研究。研究结果表明:对于合理的时空离散步距,该方法具有超常的阻尼稳定性、近场稳定性和边界计算精度;即使在充分近场和任意阻尼情况下,该方法仍然可以保证计算结果的数值稳定性和最不利人工边界节点加速度时程的计算精度;该方法具有重要的理论和应用价值。
关键词: 出平面波动 WMEFENS方法 阻尼稳定性 近场稳定性
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The stability and precision of the WMEFENS method
Abstract: In the paper, WMEFENS method and its innovation are summarized. Numerical test study about the stability and precision of the method is made by discussing the solution of SH wave motion. As a results, the conclusion is made as follows: 1) the stability and precision of the method are extraordinarily good for the rational and ; 2) the stability and precision of the method are also extraordinarily good even in the case of very near source and for any damping; the value of the method for theory and application is significant.
Keywords: SH wave motion WMEFENS method damping stability near source stability
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